I did a back seat delete for my sedan. Its not the same as it is for a hatch, but I am very happy with how it turned out. If you take out the bottom part of the back seat(the part you sit on) then you can fold the back of the seat down completely flat. So, technically I only took out the bottom part of the back seat, but I really like it. I have my 2 12" subs facing me and the bass is awsome. The main reason I left the back of the seat intact is so that when I park my car I can fold the back of the seat up and keep my subs hidden so they dont get stolen. I really like how roomy it makes my car feel with this setup. Plus the weight reduction is also a plus.
O'Reilly Auto Parts
Oak Grove, MO